快跳频的实现方法，实现语句很简单，需要提前实现BIT到SYMBOLS-The realization of fast frequency-hopping method, the realization of statement is very simple, the need to advance the realization of BIT to the SYMBOLS
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001091s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.065054s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001429s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001362s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001071s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003543s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002969s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004004s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015426s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001264s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 172071 [ RunTime:0.017784s ]
